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7 changes: 7 additions & 0 deletions docs/api/paddle/cumsum__cn.rst
Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,13 @@ cumsum\_
.. py:function:: paddle.cumsum_(x, axis=None, dtype=None, name=None)
Inplace 版本的 :ref:`cn_api_paddle_cumsum` API,对输入 `x` 采用 Inplace 策略。

参数
:::::::::
- **x** (Tensor) - 输入的 Tensor。
- **axis** (int,可选) - 累加的维度。别名 ``dim``。
- **dtype** (str|paddle.dtype|np.dtype|None,可选) - 输出 Tensor 的数据类型。
- **name** (str|None,可选) - 具体用法请参见 :ref:`api_guide_Name`。

更多关于 inplace 操作的介绍请参考 `3.1.3 原位(Inplace)操作和非原位操作的区别`_ 了解详情。

.. _3.1.3 原位(Inplace)操作和非原位操作的区别: https://www.paddlepaddle.org.cn/documentation/docs/zh/develop/guides/beginner/tensor_cn.html#id3

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